On 03/18/15 16:44, Sakari Ailus wrote:
I don't think omap3isp has been using this very long. A few minor versions
perhaps.
Do you know if this common code is supposed to guarantee a
physically contiguous memory region? The documentation for the
function doesn't indicate that it should, and it
Hi Tim,
On Wed, Mar 18, 2015 at 03:58:07PM -0500, Tim Nordell wrote:
> Laurent -
>
> On 03/18/15 14:49, Tim Nordell wrote:
> >Digging through to find who is responsible for assigning the virtual
> >addresses, I find that it's buried inside
> >arch/arm/mm/dma-mapping.c:__alloc_iova(...). This cal
Laurent -
On 03/18/15 14:49, Tim Nordell wrote:
Digging through to find who is responsible for assigning the virtual
addresses, I find that it's buried inside
arch/arm/mm/dma-mapping.c:__alloc_iova(...). This call is called
individually for each entry in the scatter-gather table via
__map_sg_ch
Laurent -
On 03/18/15 10:21, Laurent Pinchart wrote:
Correct. sg_dma_address() should contain the DMA virtual address when
an IOMMU is used.
I was assuming it was checking the physical memory layout to it without
looking too closely to the code. Armed with that knowledge, I'll dig a
little dee
Hi Tim,
On Wednesday 18 March 2015 10:19:15 Tim Nordell wrote:
> Laurent -
>
> On 03/18/15 09:59, Laurent Pinchart wrote:
> > Hi Tim,
> > The names might be a bit misleading, vb2-dma-contig requires contiguous
> > memory in the device memory space, not in physical memory. The IOMMU,
> > managed t
Laurent -
On 03/18/15 09:59, Laurent Pinchart wrote:
Hi Tim,
The names might be a bit misleading, vb2-dma-contig requires contiguous memory
in the device memory space, not in physical memory. The IOMMU, managed through
dma_map_sg_attrs, should have mapped the userptr buffer contiguously in the
I
Hi Tim,
On Wednesday 18 March 2015 09:54:58 Tim Nordell wrote:
> On 03/18/15 07:39, Laurent Pinchart wrote:
> > On Tuesday 17 March 2015 17:57:30 Tim Nordell wrote:
> >> On 04/21/14 07:29, Laurent Pinchart wrote:
> >>> Replace the custom buffers queue implementation with a videobuf2 queue.
> >>>
Laurent -
On 03/18/15 07:39, Laurent Pinchart wrote:
Hi Tim,
On Tuesday 17 March 2015 17:57:30 Tim Nordell wrote:
On 04/21/14 07:29, Laurent Pinchart wrote:
Replace the custom buffers queue implementation with a videobuf2 queue.
Signed-off-by: Laurent Pinchart
I realize this is late (it's
Hi Tim,
On Tuesday 17 March 2015 17:57:30 Tim Nordell wrote:
> On 04/21/14 07:29, Laurent Pinchart wrote:
> > Replace the custom buffers queue implementation with a videobuf2 queue.
> >
> > Signed-off-by: Laurent Pinchart
>
> I realize this is late (it's in the kernel now), but I'm noticing tha
Hi -
On 04/21/14 07:29, Laurent Pinchart wrote:
Replace the custom buffers queue implementation with a videobuf2 queue.
Signed-off-by: Laurent Pinchart
I realize this is late (it's in the kernel now), but I'm noticing that
this does not appear to properly support the scatter-gather buffers
Replace the custom buffers queue implementation with a videobuf2 queue.
Signed-off-by: Laurent Pinchart
---
drivers/media/platform/omap3isp/Makefile |2 +-
drivers/media/platform/omap3isp/ispqueue.c | 1031
drivers/media/platform/omap3isp/ispqueue.h | 171
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